Originally posted by Chris Matthews:
The other day I turned on the AC while driving down the freeway, and it would not kick in. As soon as I got on the exit ramp, retudcing my speed, it kicked on blowing cold air.



This is not enough info.

Try the A/C under various conditions.

If it is low on freon, it will short cycle the most at idle when cool out (morning).

If the engine is acting up on acceleration it may be the TPS.

If the belt or clutch was slipping you would normally see white smoke.

"Those who cannot remember the past are condemned to repeat it" -George Santayana